汽笛

汽笛是一种借助蒸汽产生声音的装置[1] 。在工厂中當工作開始或結束時會拉動汽笛。蒸汽機車、蒸汽轮船也都配備有汽笛,用于警告以及傳達某種信息。从1850年代开始,灯塔上也安裝有蒸汽汽笛。 [2]

参考文献

  1. Chanaud, Robert. . Scientific American. 1970, 222 (223): 40–46. doi:10.1038/scientificamerican0170-40.
  2. Jones, Ray. . Globe Pequot Press. 2003. ISBN 0-7627-2735-7.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.